1991 Oldsmobile Ninety Eight Regency - Page 5 - Answered Questions & Fixed issues

bad rubber around doors, or warped door frames

turn on lights to low beam,test wire plug at headlight with test light,if you have power replace lights,if no power ,check for out going power at head light switch,if no power replace switch,if you do have power replace multi fuction switch

power steering pump,
check fluid first,if fluid is full it will need replaced

Based on the information you have given to this point, I am just going to give you a few possiblities. Have you had a tune up done recently? Air filter been checked or changed? I am not in any way trying to sound sarcastic so I apologize if I come off that way.Those would be my first things to inspect if I were ask to look at your car. I would also check fuel pressure and inspect the fuel pressure regulator.I would consider these things and go from there. I Hope this helps you but please let me know if you need more information on what to do next but I may need some more information at that time also .

Review this Wiring Schematic about Olds 98 ('89, '90 & '91):
1989 1
1989 2

1990 1
1990 2

1991 1
1991 2

I really hope help you with this (remember rated this help). Good luck.

The most common problem is the crank pickup going bad.
If you have never changed this sensor do it now....you will have to change it soon anyway.
Not expensive........it causes a lot of problems and fails often.

Do you see a check engine light come on when the car tries to stall?
Hopefully you do....it will help with a quick diagnosis's of the stalling problem.

Could the ignition light bulb itself be blown?

How do you bypass the chip that's on the key?

cam sensor is only half of the cam circuit, the other half of the cam circuit is the magnet on the timing chain. the cam sensor reads from the magnet every time the engine completes a revolution,
what happens is the magnet on the chain will break into smaller piece which makes the sensor harder to read every time the engine make a complete revolution.
most likely you'll need to replace the timing chain to fix this.

If the blower motor,or the cooling fans are staying on,then it is a relay stuck.Find the relay,by removing relays one by one,replacing them back as you go.When the relay is unplugged,the fan will go off,If you put it back in,it will probley not come back on unless you turn the ac back on,then it will do it again.Replace the relay with a new one.I hope this is helpful,let me know if it is.

could be pickup coil in distributor

You need to enter the security code into the radio. You can look in the owners manual for instructions. hopefully somebody wrote the code in there. You may have to take it to a dealer. Only take 15 minutes at most. Once you get it unlocked you can turn off the security feature so it doesn't happen again.

Did you check your ecm fuse?

Remove all three battery cables and clean them and replace bolts.

If none of your coils are firing then it is possible you have lost the ignition module. It mounts under the coils and is not hard to change. Good Luck

replace cranksensor

its about 100$ for the igniton and 150 to 200 for labour

By the fuel tank, in the back of the car.;-)

I had the same thing happen on a 91 Olds 88. Replaced crank shaft position sensor, coil, and ignition module. That solved the problem. I think the culprit was the CSP Sensor, but changed all three so can't say for sure.

have you checked for that relays and regulator?